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Land Use and Water Quality in Land Use and Water Quality in Hawaiian Streams:Hawaiian Streams:
Findings from the USGS National Findings from the USGS National Water Quality Assessment ProgramWater Quality Assessment Program
Anne BrasherAnne BrasherU.S. Geological SurveyU.S. Geological Survey
NAWQA Study Design
Ground Water Surface Water
EcologyWater Column Sediment and Tissue
PesticidesNutrients/Sediment
InvertebratesFish/Crustaceans
Metals and TEs Organics
Flow and Pesticides in Manoa Stream
0
20
40
60
80
100
Dieldrin Diazinon Carbaryl Malathion Prometon
Freq
uenc
y of
Det
ectio
n
LOW TO MODERATE FLOW
MODERATE TO HIGH FLOW
0
0.02
0.04
0.06
0.08
0.1
1 10 100 1000Instantaneous Discharge (cfs)
Die
ldrin
Con
cent
ratio
n (u
g/L)
Dieldrin and Flow in Manoa Stream
EPA Chronic Water-Quality Criteria Aquatic Life
0
20
40
60
80
100
Bromacil Atrazine Desethyl Diazinon Carbarylatrazine
Flow vs. Pesticides in Waikele Stream
LOW TO MODERATE FLOW
MODERATE TO HIGH FLOW
Freq
uenc
y of
Det
ectio
n
Dissolved Phosphorus in Waikele Stream
0.00
0.05
0.10
0.15
0.20
0.25
Dec. 6 Jan. 10 Feb. 14 May 9
Phos
phor
us (
mg/
L as
P)
UPPER SITE
LOWER SITE
HIGH FLOW
Total chlordane in fish
AG FOREST MIX URBAN
0
1000
2000
Con
cent
ratio
n (p
pb)
(n=18)(n=3) (n=8)(n=8)
NY State guideline for protection of birds that eat fish
Dieldrin in fish
AG FOREST MIX URBAN
300
800
1300
1800
Con
cent
ratio
n (p
pb)
(n=18)(n=3) (n=8)(n=8)
Comparison to National NAWQA data
TOTAL CHLORDANE DIELDRIN TOTAL DDT
Con
cent
ratio
n (p
pb)
ND ND
1,000
100
10
1
10,000
1,000
100
10
1
URBAN URBANALL AGAG URBAN URBANALL AGAG URBAN URBANALL AGAG
OAHUNATIONAL OAHUNATIONAL OAHUNATIONAL
Manoa Stream, Fish Tissue
Dieldrin
0
1500
3000
4500
6000
7500
9000
1970
1975
1980
1985
1990
1995
2000
Sampling dateTotal Chlordane
0
2000
4000
6000
8000
1970
1975
1980
1985
1990
1995
2000
Sampling dateTotal DDT
0
500
1000
1500
2000
1970
1975
1980
1985
1990
1995
2000
Sampling date
Conc
entr
atio
n, u
g/kg
1
10
100
As Ba Cd Pb Sn ZnELEMENT
ENR
ICHM
ENT
FAC
TOR
(Al-n
orm
aliz
ed) Urban
MixedAgriculture
Streambed Sediment
162024283236
162024283236
162024283236
URBAN
MIXED
FOREST
TEM
PERAT
URE
c o
MAXMEAN
MIN
4/99
10/0
0
6/99
8/99
10/9
9
12/9
9
2/00
4/00
6/00
8/00
Benthic Invertebrates as Indicators of Benthic Invertebrates as Indicators of Stream QualityStream Quality
Benthic invertebrates and land use
URBAN
FORESTED
CRUSTACEA
MOLLUSCA
ANNELIDA
OTHER (Turbellaria)
INSECTA
ATYOIDAProcambarus clarkii
Neocaridina denticulata
Macrobrachium lar
Atyoida bisulcata
Crustaceans
OPAE
PRAWNCRAYFISH
SHRIMP
0
1
2
3
4
5
6
7
MANO
KANE
WKEL
WKAK
WKEA
KALU
WHEEWHOL
PUNB
PUNA
Rel
ativ
e ab
unda
nce
log(
x+1)
Atyoida bisulcataNeocaridina denticulata Macrobrachium larProcambarus clarkii
Crustaceans vs. Land Use
URBAN MIXED FOREST
Molluscs vs. Land Use
0
1
2
3
4
5
6
7M
ANO
KANE
WKE
L
WKA
K
WKE
A
KALU
WHE
E
WHO
L
PUNB
PUNA
Rel
ativ
e ab
unda
nce
[log
(x+1
)]
Corbicula flumineaFerrissia sharpiThiaridae
URBAN MIXED FOREST
Ratio of Diptera to Trichoptera
0%
20%
40%
60%
80%
100%
PUNAPUNBW
HOLW
HEEW
KEAKANEMANOW
KAKW
KEL
Inse
ct a
bund
ance
Hydroptila
Cheumatopsyche
Limonia
Hemerodromia
Eukiefferiella
Ephydridae
Cricotopus
Ceratopogonidae
Chironomidae
TRICHOPTERA
DIPTERA
HIGH LOWPercent Forest
Native species in Hawaiian streams
Atyoida bisulcataOPAE
Sicyopterus stimpsoniNOPILI
Lentipes concolorALAMOO
Awaous guamensisNAKEA
Mosquito control
Poecilia sphenopsMOLLY
Gambusia affinisMOSQUITO FISH
Xiphohorus helleriGREEN SWORDTAIL
Aquarium releases
Hemichromis elongatusJEWEL CICHLID
Hypostumus sp.LORICARID CATFISH
Melanochromis johanniMBUNA
Food fishes
Sarotherodon melanotheronBLACKCHIN TILAPIA
Ictalurus punctatusCHANNEL CATFISH
Micropterus dolomieuSMALLMOUTH BASS